Cram
Simple AMD and CommonJS module bundler.
Bootstrap Ajax
A library for adding declarative ajax functionality to your website
101
A modern JS utility library
Sentry
Sentry is a realtime error logging and aggregation platform
Platform.js
A platform detection library that works on nearly all JavaScript platforms.
Mobx
Simple, scalable state management.
ifvisible.js
Checks if the current page is visible or not
Px Loader
PxLoader is a simple JavasScript library for creating preloaders and resource downloaders for HTML5 apps.
Next.js
Next.js is a lightweight framework for static and server‑rendered applications.
Canjs
Can do JS, better, faster, easier.
Theory
Abstraction layer for cross platform JavaScript.
Tweet
put twitter on your website with tweet, an unobtrusive javascript plugin for jquery
Conditioner
Frizz Free, Environment-aware, JavaScript Modules
Koa
Expressive middleware for node.js using ES2017 async functions
Mobservable
Observable data. Reactive functions. Simple code.
Joosy
Joosy is a browser applications framework. That is based on Rails, CoffeeScript and love.
Gijgo
Gijgo - Free Javascript Controls